Piston Pump Degassing via Negative Pressure
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Solution Overview
Problem
Existing degassing methods for liquids in analytical devices require additional vacuum sources and complex setups, making them impractical for applications like environmental monitoring and industrial processes where simplicity and self-sufficiency are essential.
Innovation Solution
A piston pump-based method that creates negative pressure within a receiving chamber to extract gases from liquids, eliminating the need for external vacuum sources and using a valve system to manage liquid and gas flow, allowing for repeated degassing cycles to enhance gas removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external vacuum sources are used for degassing liquids, then gas removal effectiveness is improved, but device complexity and equipment requirements worsen
Solution Approach 1:
The piston pump serves dual functions: it both transports the liquid sample and performs degassing by creating negative pressure within its pumping chamber. This self-service approach eliminates the need for separate vacuum sources, resolving the contradiction between effective gas removal and device complexity
Solution Approach 2:
The piston pump is designed to perform multiple functions simultaneously - liquid transport and degassing operations. By making the pump universal for both tasks, the invention removes the need for additional specialized equipment while maintaining effective gas removal capability
2Reliability
If additional vacuum sources and complex setups are used, then degassing performance is improved, but ease of operation and serviceability worsen
Solution Approach 1:
The system uses the piston pump's inherent negative pressure generation capability to perform degassing without requiring external vacuum sources. This self-service mechanism simplifies operation and maintenance while ensuring reliable degassing performance
Solution Approach 2:
The invention merges the degassing function with the existing liquid transport function of the piston pump. By combining these operations into a single integrated process, the system improves ease of operation while maintaining effective degassing performance
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach simplifies the degassing process, reduces equipment complexity, and effectively separates gases from liquids, improving measurement accuracy in analytical devices without the need for additional peripherals like vacuum pumps.
Implementation Method 1
producing a negative pressure in the receiving chamber by continuing the first stroke movement of the piston
Data Source
AI summary
A method for degassing a liquid by means of a piston pump unit having a receiving chamber serving for accommodating the liquid to be degassed and connected with at least one supply line and at least one drain line, and a piston seated in the receiving chamber for performing stroke movements. The piston provides a liquid sealing of the receiving chamber on one end. The following steps are included: drawing liquid via the supply line into the receiving chamber by performing a first stroke movement of the piston in the case of blocked drain line and open supply line; producing a negative pressure in the receiving chamber by continuing the first stroke movement of the piston in the case of blocked supply line and blocked drain line; and opening the drain line and removing a gas phase present in the receiving chamber from the receiving chamber via the drain line by performing a second stroke movement of the piston directed counter to the first stroke movement in the case of an opened drain line and blocked supply line.